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| 型号： | MAX5024TASA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V/ADJ .15A 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，固定式或可调式 |
| 输出电压： | 3.3V，2.5 V ~ 11 V |
| 输入电压： | 6.5 V ~ 65 V |
| 电压 - 压降（标准）： | 0.9V @ 150mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA（最小） |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
19-2619; Rev 2; 5/05
65V, Low-Quiescent-Current, High-Voltage Linear
Regulators with μP Reset and Watchdog Timer
General Description
The MAX5023/MAX5024 high-voltage linear regulators
operate from a +6.5V to +65V input voltage and deliver
up to 150mA of output current. These devices consume
only 60μA of quiescent current with no load and with-
stand a -60V reverse-battery voltage at the input. The
MAX5023/MAX5024 include an active-low internal
microprocessor (μP) reset circuit that asserts when the
regulator output drops below the preset output voltage
threshold by 7.5% or 12.5%, depending on the device
selected. Both devices are available with a fixed +3.3V
or +5V output. These devices are short-circuit protected
and include thermal shutdown.
In addition to an enable input to turn on or off the regu-
lator, the MAX5023/MAX5024 include a HOLD input
that allows for the implementation of a self-holding
circuit without requiring external components. Setting
HOLD low after enabling the regulator, forces the regu-
lator to remain on even if EN is subsequently set low.
Releasing HOLD shuts down the regulator.
The MAX5023 includes a watchdog input that monitors a
pulse train from the μP and generates reset pulses if the
watchdog input remains high or low for a duration longer
than the 1.6s watchdog timeout period. The MAX5024
includes a SET input which, when connected to ground,
selects a preset output voltage of +3.3V (MAX5024S/
Features
? Wide Operating Input Voltage Range
+6.5V to +65V
? Thermally Enhanced 8-Pin SO Package with
Exposed Pad Dissipates 1.5W
? Guaranteed 150mA Output Current
? 60μA No-Load Supply Current
? -60V Reverse-Battery Protection
? Preset +3.3V or +5.0V Output Voltage
? Thermal and Short-Circuit Protection
? Operate Over -40°C to +125°C Temperature Range
? Integrated μP Reset Circuit
? Watchdog Timer with 1.6s Timeout Period
(MAX5023)
? Regulator Enable and Hold Inputs Implement
Self-Holding Circuit
? SET Input for Adjustable Output Voltage
(MAX5024)
Ordering Information
MAX5024T) or +5V (MAX5024L/MAX5024M). Set the
adjustable output voltage by connecting SET to the regu-
lator’s output through a resistive-divider network.
PART
MAX5023 _ ASA
MAX5024 _ ASA
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
8 SO-EP*
8 SO-EP*
The MAX5023/MAX5024 operate over the automotive
temperature range (-40°C to +125°C) and are available
in a thermally enhanced, surface-mount 8-pin SO-EP
package.
Applications
Note: These parts offer a choice of reset thresholds, reset
threshold tolerances, and regulator output voltages. From the
Selector Guide, insert the desired suffix letter into the blank to
complete the part number.
* EP = Exposed Paddle.
Automotive
Industrial
Fire/Smoke Alarms
Telecom/Networking
Selector Guide and Typical Operating Circuit appear at end
of data sheet.
Home Security
Pin Configurations
TOP VIEW
IN 1
8
OUT
IN
1
8
OUT
EN 2
MAX5023
7
WDI
EN 2
MAX5024
7
SET
GND
3
6
N.C.
GND
3
6
N.C.
RESET 4
5
HOLD
RESET 4
5
HOLD
SO-EP
SO-EP
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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